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#ifndef _SYS_TRACE_H_
#define _SYS_TRACE_H_
#include <litmus/feather_trace.h>
#include <litmus/feather_buffer.h>
/*********************** TIMESTAMPS ************************/
struct timestamp {
unsigned long event;
unsigned long long timestamp;
unsigned int seq_no;
int cpu;
};
/* buffer holding time stamps - will be provided by driver */
extern struct ft_buffer* trace_ts_buf;
/* save_timestamp: stores current time as struct timestamp
* in trace_ts_buf
*/
asmlinkage void save_timestamp(unsigned long event);
#define TIMESTAMP(id) ft_event0(id, save_timestamp)
/* Convention for timestamps
* =========================
*
* In order to process the trace files with a common tool, we use the following
* convention to measure execution times: The end time id of a code segment is
* always the next number after the start time event id.
*/
#define TS_SCHED_START TIMESTAMP(100)
#define TS_SCHED_END TIMESTAMP(101)
#define TS_CXS_START TIMESTAMP(102)
#define TS_CXS_END TIMESTAMP(103)
#define TS_TICK_START TIMESTAMP(110)
#define TS_TICK_END TIMESTAMP(111)
#define TS_PLUGIN_SCHED_START TIMESTAMP(120)
#define TS_PLUGIN_SCHED_END TIMESTAMP(121)
#define TS_PLUGIN_TICK_START TIMESTAMP(130)
#define TS_PLUGIN_TICK_END TIMESTAMP(131)
#define TS_ENTER_NP_START TIMESTAMP(140)
#define TS_ENTER_NP_END TIMESTAMP(141)
#define TS_EXIT_NP_START TIMESTAMP(150)
#define TS_EXIT_NP_END TIMESTAMP(151)
#define TS_SRP_UP_START TIMESTAMP(160)
#define TS_SRP_UP_END TIMESTAMP(161)
#define TS_SRP_DOWN_START TIMESTAMP(162)
#define TS_SRP_DOWN_END TIMESTAMP(163)
#define TS_PI_UP_START TIMESTAMP(170)
#define TS_PI_UP_END TIMESTAMP(171)
#define TS_PI_DOWN_START TIMESTAMP(172)
#define TS_PI_DOWN_END TIMESTAMP(173)
#define TS_FIFO_UP_START TIMESTAMP(180)
#define TS_FIFO_UP_END TIMESTAMP(181)
#define TS_FIFO_DOWN_START TIMESTAMP(182)
#define TS_FIFO_DOWN_END TIMESTAMP(183)
#endif /* !_SYS_TRACE_H_ */
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